package com.yuanlun.springboot04webrestfulcrud.controller;

import com.yuanlun.springboot04webrestfulcrud.dao.DepartmentDao;
import com.yuanlun.springboot04webrestfulcrud.dao.EmployeeDao;
import com.yuanlun.springboot04webrestfulcrud.entities.Department;
import com.yuanlun.springboot04webrestfulcrud.entities.Employee;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;

import java.util.Collection;

@Controller
public class EmployeeController {
    @Autowired
    EmployeeDao employeeDao;
    @Autowired
    DepartmentDao departmentDao;

    //查询所有员工返回列表页面
    @GetMapping("/emps")
    public String list(Model model) {
        Collection<Employee> employees = employeeDao.getAll();
        //放到请求域
        model.addAttribute("emps", employees);
        //thymeleaf默认就会串
        //classpath:/templates/xxx.html
        return "emp/list";
    }

    //来到员工添加页面
    @GetMapping("/emp")
    public String toAddPage(Model model) {
        //来到添加页面,查询所有的部门，在页面显示
        Collection<Department> departments = departmentDao.getDepartments();
        model.addAttribute("depts", departments);
        return "emp/add";
    }

    //员工添加
    //springmvc自动将請求参数和入参对象的属性进行一一绑定；要求請求参数的名字和JavaBean入参的对象里面的属性名一致
    @PostMapping("/emp")
    public String addEmp(Employee employee) {
        //来到员工列表页面
        System.out.println("保存的员工信息:" + employee);
        //保存员工
        employeeDao.save(employee);
        //redirect；表示重定向到一个地址，/代表当前项目路径
        //forword:表示转发到一个地址
        return "redirect:/emps";
    }

    //来到修改页面，查出当前员工，在页面上回显
    @GetMapping("/emp/{id}")
    public String toEditPage(@PathVariable("id") Integer id, Model model) {
        Employee employee = employeeDao.get(id);
        model.addAttribute("emp", employee);

        //页面要显示所有的部门列表
        Collection<Department> departments = departmentDao.getDepartments();
        model.addAttribute("depts", departments);
        //回到修改页面（add是一个修改添加二合一的页面）
        return "emp/add";
    }

    //员工修改
    @PutMapping("/emp")
    public String updateEmployee(Employee employee) {
        System.out.println("修改员工的信息:" + employee);
        employeeDao.save(employee);
        return "redirect:/emps";
    }

    //员工删除
    @DeleteMapping("/emp/{id}")
    public String deleteEmployee(@PathVariable("id") Integer id) {
        employeeDao.delete(id);
        return "redirect:/emps";
    }
}
